which is why he can get away skiing them at +5. People who are bigger and are looking for decent float are gonna think +5 is too far foward, even on the 189.
You also have to remember the core profile of the 189 is about twice as thick as the 179, so the 189 skis much stiffer than the 179.
Like I said, my 189 are mounted +4 and I wouldn't want to be any more foward. They float ok, do great everywhere else. They aren't my pow skis, so I really dont care too much.
I have my 179 SP mounted +6..and they suck in pow. just not enough tip to float well and really be stable.